Struct MetaLearningEngine 

pub struct MetaLearningEngine {
    pub regret: RegretTracker,
    pub plateau: PlateauDetector,
    pub pareto: ParetoFront,
    pub curiosity: CuriosityBonus,
    pub decaying_betas: HashMap<(ContextBucket, ArmId), DecayingBeta>,
    /* private fields */
}

Unified meta-learning engine that composes all five improvements.

Drop-in enhancement for the existing DomainExpansionEngine. Call record_decision after each arm selection and check_plateau periodically to get adaptive strategy recommendations.

Fields

regret: RegretTracker

plateau: PlateauDetector

pareto: ParetoFront

curiosity: CuriosityBonus

decaying_betas: HashMap<(ContextBucket, ArmId), DecayingBeta>

Per-bucket decaying beta distributions (optional overlay).

Implementations

impl MetaLearningEngine

pub fn new() -> Self

Create with standard parameters.

pub fn with_config( regret_snapshot_interval: u64, plateau_window: usize, plateau_threshold: f32, exploration_coeff: f32, decay_factor: f32, ) -> Self

Create with custom parameters.

pub fn record_decision( &mut self, bucket: &ContextBucket, arm: &ArmId, reward: f32, )

Record a decision outcome. Call after every arm selection.

pub fn record_kernel( &mut self, kernel_id: &str, accuracy: f32, cost: f32, robustness: f32, generation: u32, )

Record a population kernel’s multi-objective performance.

pub fn check_plateau(&mut self, points: &[CostCurvePoint]) -> PlateauAction

Check the cost curve for plateau and recommend action.

pub fn boosted_score( &self, bucket: &ContextBucket, arm: &ArmId, thompson_sample: f32, ) -> f32

Get the curiosity-boosted score for an arm.

Combines the Thompson Sampling estimate with an exploration bonus.

pub fn decaying_mean(&self, bucket: &ContextBucket, arm: &ArmId) -> Option<f32>

Get the decaying beta mean for a bucket/arm (if tracked).

pub fn health_check(&self) -> MetaLearningHealth

Comprehensive health check of the learning system.

Trait Implementations

impl Clone for MetaLearningEngine

fn clone(&self) -> MetaLearningEngine

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetaLearningEngine

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetaLearningEngine

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaLearningEngine

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetaLearningEngine

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.